Heater.



No. 821,269. PATENTED MAY 22, 1906.

S. D. WATSON.

HEATER.

APPLICATION FILED JULY 31, 1905.

4 SHEETS-SHEET 1.

/NVEHTOR SEYMOUR i WATSON. 5v l ATT'Y.

co, PHBIO-LIYHDGRAPHERS wAsmuorom u c.

4 SHEETS-SHEET 2.

PATENTED MAY 22, 1906. S. D. WATSON.

HEATER.

APPLICATION FILED JULY31. 1905.

WI TNESSES PATENTED MAY 22, 1906.

s. D. WATSON.

HEATER.

APPLIOATION FILED .TULYBI, 1905.

4 SHEETS-SHEET a.

i i. -q 7 WITNESSES if 4 ATT'V.

No. 821,269. PATENTED MAY 22, 1906. S. D. WATSONL HEATER.

APPLICATION FILED JULY 31, 1905.

4 SHEETS-SHEET 4.

I J ti WITNESSES wSEYMOL/ F- D WATSO/lmokgw a sauna c0. PMOKO-LITNUGRAPHEHS, WASWNG'ON. u c

UNITED STATES PATENT OFFIOE.

Specification of Letters Patent.

Patented May 22, 1906.

Application filed July 31, 1905. Serial No. 272,063.

T0 at whom it may 001206772:

Be it known that I, SEYMOUR D. WATSON, a citizen of the United States, residing at St. Johns, in the county of Clinton and Stateof Michigan, have invented certain new and useful Improvements in Heaters, of which the following is a specification, reference being had therein to the accompanying drawings.

The invention relates particularly to a heater adapted for use either in steam or hotwater systems; and it consists in the novel and simple construction of a heater of this type whereby it may be readily operated and an increased amount of heating-surface obtained.

. The invention further consists in the peculiar arrangement and combination of parts of the heater and in certain details of construction, as will be hereinafter more fully described, and pointed out in the claims.

In the drawings, Figure 1 is a sectional view of the heater, partly in elevation. Fig. 2 is a vertical section at right angles to Fig. 1, showing the pipes in elevation. Fig. 3 is a horizontal section on line 3 3 of Fig. 1 withthe smoke-fiue removed. Fig. 4 is a plan view of the lower face of the top casing, showing smoke-fiues. Fig. 5 is a vertical section through a fragment of the casing, illustrating the attachment and connecting openings be tween the casing-sections. Figs. 6 to 9 show a modified construction of the heater for large sizes. Fig. 6 is a section on line 6 6 of Fig 7. Fig. 7 is a section on line 7 7 of Fig. 6. Fig. 8 is a vertical section, partly in elevation; and Fig. 9 is a plan View of the top casing with a portion broken away.

A is a base, preferably rectangular, forming an ash-pit provided with suitable openings closed by ash-doors a, bearing suitable dampers. On this base are mounted side casings B, back casing O, and front casing D;

These casings are hollow and mounted with their edges abutting and connected by ports E with suitable watertight joints, so that water supplied by a suitable feed-pipe F may circulate through all four casings. The casing D is preferably formed, as shown in the drawings, in two sections (1 d, and each of these sections is cast integral with the adj acent side casing B. This arrangement permits an easier assembling of the heater and necessitates fewer water-tight joints. However,'if desired, the casing D may be formed in a single piece and may be secured to the side casings in the same manner as the back casing O. The sections (1 d extend only the height of the grate-basket, forming the front end of the fire-pot, and secured to its face and to the front edges of casings B is the plate G, provided with door-openings closed by suitable fire-doors g, openings closed by doors H for access to the heater-tubes, and an opening for access to the flue M, closed by a door m. The top of the base A is provided with an inwardly-projecting flange I, on which is seated a suitable grate-bottom J. The grate-basket is formed by the inwardlyslanted walls of the casings.

On the upper edges of the back and side casings and abutting the front plate G is the top (water or steam) casing K, with apertures e in its lower face, registering with corresponding openings in the upper edges of casings B and O for circulation. This lower face is provided with smoke flues L, as clearly shown in Figs. 1, 2, and 4, connecting the interior of the heater with the flue M, which forms a hollow core substantially oval in cross-section through the top casing from front to rear. The rear end of the flue M registers with the opening a in the smoke casing or box N, which is mounted on and covers substantially the whole outer face of the rear casing O for insulating purposes and for making use of all available heat. A suitable smoke-pipe is connected to the smoke-box N at O, slightly below the opening a, and from' a point intermediate n and O on each side of the latter are the downwardly-extending baffle-walls R R. The intervening space may be closed by the damper P, so that the smoke and hot products of combustion must pass around the baffles and up between them to the opening O. If a direct draft is required, the damper P is opened.

The inner wall of the rear casing is provided with openings in which are secured a number of tubes T, extending forward into adjacence with the front plate of the heater and having their free ends closed by plugs or removable caps S. I preferably place a number of these tubes in rows close together in the upper part of the heater and a vertical row on each side of the fire-door, as clearly shown in Figs. 1 and 2. The water or steam outlet from the heater is the pipe U, and I preferably provide a suitably-connected water-glass V.

Where large-sized heaters are desired, I 1 IO have arranged to combine two of those above described with few changes of parts. On a base A of suitable size I mount a rear casing D and four casings B, two on each side, and in the front a casing D, extending only to the lowest row of tubes to leave an opening closed by the door G for access to the tubes. The casing D is formed in two sections (1 d integral with the adjacent casings B. Between the pairs of casings B, I provide a transverse casing C, arched over the grate and having tubes T extending from-both sides longitudinally of the heater. The casing C communicates with casings B through apertures E, and all are secured together, preferably by the longitudinally-extending rods Y. The top is formed of two casings K, similar to .casings K, but having oblique meeting faces to provide communication through ports 6 with the central wall from the top cas1ngs,re-

spectively, as clearly shown in Fig. 9. Other ports 6 connect with the side walls. For the large sizes, smoke-flues N lead directly from the flues M, as shown in Figs. 6 and 9, and at the outer ends of the flues M are doors m. The water or steam outlet is at V in the top of one of the casings. It will be seen that all available heat is utilized and the water entering through pipe F can circulate through the casings and tubes and steam or hot water is taken off at V.

What I claim as my invention is 1. In a heater, a horizontal water-wall forming the heater-top having a smoke-flue extending longitudinally therethrough and communicating with the interior of the heater, the said water-wall forming a jacket about the flue.

, 2. In a heater, the combination with. a front, rear and side walls, and a horizontal water-wall forming the heater-top, provided with a smoke-flue extending longitudinally therethrough and one or more flues establishing communication between the smokeflue and the heater interior.

3. In aIheater, the combination with a heater-front, of side water-walls, an intermediate water-wall connecting the sides, a communicating horizontal water-wall forming the heater-top and having a smoke-flue extending longitudinally therethrough, and a plurality of vertically-extending flues leading from the interior of the heater .into the horizontal flue.

4. In a heater, the combination with communicating side, intermediate and top waterwalls, a smoke-flue leading longitudinally through the top walland having communication with the interior of the heater, a smoke-box into which the smoke-flue leads and a detachable plate forming part of the greater-front, closing the forward end of said 5. In a heater, the combination with front, rear and side walls, of a horizontal water-wall forming the heater-top having a horizontal smoke-flue formed therein and extending through one end, and a detachable plate forming a closure for said flue.

6. In a heater, the combination with side water-walls, of an intermediate water-wall connecting and communicating with the sides, and a front water-wall composed of independent complementary sections carried by the side walls.

7. In a heater, water-walls and a front water-wall composed of independent abutting sections.

8. In a heater, the combination with side water-walls and a sectional water-wall form ing the lower portion of the heater-front, the

sections being relatively independent and having communication with the sides.

* 9. In a heater, the combination with inclosing water-walls forming the heater sides, rear and top, a vertical smoke-box having an outlet and an inlet at its upper end, a smokeflue in the water-top having communication with the interior of the heater and with the smoke-box through its inlet, a return-flue between said inlet and outlet openings and means for compelling the passage of the smoke through said return-flue.

10. In a heater, the combination with the walls forming the front, rear, sides and top of the heater, of a vertical smoke-box having inlet and outlet openings in its upper end, a smoke-flue in adjacence to and extending horizontally of the top and having communication with the smoke-box through its inlet, a downwardly-extending return-flue connecting said inlet and outlet and a damper for permitting the direct discharge of the smoke or 'for compelling its passage through the return-flue.

11. In a heater, the combination with the heater-front, of communicating water-walls forming the heater sides, rear and top, a vertical smoke-box inclosing the rear wall of the heater and having inlet and outlet openings in its upper portion, a smoke-flue extending longitudinally through the top water-wall and communicating with the smoke-box through its inlet, a downwardly-extending return-flue within the smoke-box in communication with said inlet and outlet openings and a damper for compelling the discharge of the smoke through the return-flue.

12. In a heater, the combination with the heater front, rear and top, of a smoke-box provided with an outlet, a return-flue within the smoke-box, a smoke-flue establishing communication between the interior of the heater and the smoke-box near its outlet, and means for permitting the direct discharge of the smoke through the smoke-box or for compelling its passage through said returnfiue.

13. In a heater, the combination with communicating front and side water-walls, of an the combination with side ITO intermediate water-wall connecting the sides, and fines leading from the smoke-flue to the a plurality of communicating water-tubes interior of the heater. 10 supported by and projecting forwardly from In testimony whereof I affix my signature the intermediate water-wall in the direction. in presence of two witnesses.

of the heater-front, a horizontal water-wall SEYMOUR D. WATSON. forming the heater-top and having communi- Witnesses:

cation with the sides, a smoke-flue extending HENRY E. WALBRIDGE,

longitudinally through the horizontal wall, 1 MABEL WALBRIDGE. 

